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प्रश्न
Explain the different steps involved during primary treatment phase of sewage.
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उत्तर
The primary treatment phase of sewage involves the removal of coarse solid materials through filtration and sedimentation. The diluted sewage is passed through a series of filters of sequentially small pore sizes to remove large floating objects. Then the filtered sewage is passed into the grit chamber where the coarse solid materials settle by gravity. After this, the sewage is allowed to pass into a sedimentation tank where the suspended materials settle and form the primary sludge. The effluent is then taken for the secondary treatment.
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संबंधित प्रश्न
Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.
Why is this sewage water treatment essential?
Small part of activated sludge is passed back into primary sedimentation tank.
If the above statement is correct then rewrite as it is and in case it is incorrect then reframe it.
The purpose of biological treatment of waste water is to ______.
In which of the following microbial digestion of organic wastes of sewage takes place?
Which of the following occurs during secondary treatment?
After which of the following treatment BOD of the effluent is significantly reduced?
In a sewage treatment plant, all of the following processes belong to secondary treatment except:
Why do we prefer to call secondary waste water treatment as biological treatment?
In what way anaerobic sludge digestion is important in sewage treatments?
